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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <iostream> |
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29 |
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30 #include "Cell.h" |
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31 #include "oct-obj.h" |
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32 #include "oct-map.h" |
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33 #include "ov-base.h" |
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34 #include "ov-base-mat.h" |
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35 #include "pr-output.h" |
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36 |
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37 template <class MT> |
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38 octave_value |
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39 octave_base_matrix<MT>::subsref (const std::string& type, |
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40 const std::list<octave_value_list>& idx) |
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41 { |
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42 octave_value retval; |
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43 |
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44 switch (type[0]) |
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45 { |
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46 case '(': |
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47 retval = do_index_op (idx.front ()); |
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48 break; |
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49 |
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50 case '{': |
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51 case '.': |
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52 { |
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53 std::string nm = type_name (); |
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54 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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55 } |
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56 break; |
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57 |
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58 default: |
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59 panic_impossible (); |
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60 } |
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61 |
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62 return retval.next_subsref (type, idx); |
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63 } |
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64 |
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65 template <class MT> |
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66 octave_value |
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67 octave_base_matrix<MT>::subsasgn (const std::string& type, |
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68 const std::list<octave_value_list>& idx, |
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69 const octave_value& rhs) |
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70 { |
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71 octave_value retval; |
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72 |
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73 switch (type[0]) |
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74 { |
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75 case '(': |
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76 { |
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77 if (type.length () == 1) |
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78 retval = numeric_assign (type, idx, rhs); |
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79 else if (is_empty ()) |
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80 { |
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81 // Allow conversion of empty matrix to some other type in |
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82 // cases like |
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83 // |
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84 // x = []; x(i).f = rhs |
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85 |
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86 if (type[1] == '.') |
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87 { |
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88 octave_value tmp = octave_value::empty_conv (type, rhs); |
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89 |
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90 retval = tmp.subsasgn (type, idx, rhs); |
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91 } |
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92 else |
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93 error ("invalid assignment expression"); |
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94 } |
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95 else |
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96 { |
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97 std::string nm = type_name (); |
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98 error ("in indexed assignment of %s, last lhs index must be ()", |
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99 nm.c_str ()); |
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100 } |
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101 } |
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102 break; |
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103 |
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104 case '{': |
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105 case '.': |
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106 { |
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107 if (is_empty ()) |
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108 { |
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109 octave_value tmp = octave_value::empty_conv (type, rhs); |
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110 |
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111 retval = tmp.subsasgn (type, idx, rhs); |
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112 } |
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113 else |
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114 { |
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115 std::string nm = type_name (); |
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116 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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117 } |
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118 } |
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119 break; |
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120 |
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121 default: |
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122 panic_impossible (); |
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123 } |
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124 |
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125 return retval; |
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126 } |
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127 |
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128 template <class MT> |
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129 octave_value |
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130 octave_base_matrix<MT>::do_index_op (const octave_value_list& idx, |
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131 bool resize_ok) |
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132 { |
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133 octave_value retval; |
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134 |
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135 octave_idx_type n_idx = idx.length (); |
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136 |
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137 int nd = matrix.ndims (); |
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138 |
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139 switch (n_idx) |
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140 { |
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141 case 0: |
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142 retval = matrix; |
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143 break; |
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144 |
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145 case 1: |
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146 { |
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147 idx_vector i = idx (0).index_vector (); |
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148 |
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149 if (! error_state) |
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150 retval = MT (matrix.index (i, resize_ok, MT::resize_fill_value ())); |
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151 } |
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152 break; |
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153 |
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154 default: |
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155 { |
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156 if (n_idx == 2 && nd == 2) |
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157 { |
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158 idx_vector i = idx (0).index_vector (); |
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159 |
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160 if (! error_state) |
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161 { |
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162 idx_vector j = idx (1).index_vector (); |
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163 |
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164 if (! error_state) |
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165 retval = MT (matrix.index (i, j, resize_ok, |
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166 MT::resize_fill_value ())); |
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167 } |
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168 } |
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169 else |
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170 { |
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171 Array<idx_vector> idx_vec (n_idx); |
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172 |
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173 for (octave_idx_type i = 0; i < n_idx; i++) |
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174 { |
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175 idx_vec(i) = idx(i).index_vector (); |
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176 |
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177 if (error_state) |
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178 break; |
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179 } |
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180 |
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181 if (! error_state) |
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182 retval = MT (matrix.index (idx_vec, resize_ok, |
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183 MT::resize_fill_value ())); |
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184 } |
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185 } |
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186 break; |
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187 } |
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188 |
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189 return retval; |
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190 } |
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191 |
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192 template <class MT> |
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193 void |
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194 octave_base_matrix<MT>::assign (const octave_value_list& idx, const MT& rhs) |
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195 { |
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196 octave_idx_type len = idx.length (); |
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197 |
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198 for (octave_idx_type i = 0; i < len; i++) |
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199 matrix.set_index (idx(i).index_vector ()); |
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200 |
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201 ::assign (matrix, rhs, MT::resize_fill_value ()); |
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202 |
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203 |
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204 // Invalidate the matrix type |
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205 typ.invalidate_type (); |
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206 } |
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207 |
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208 template <class MT> |
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209 octave_value |
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210 octave_base_matrix<MT>::resize (const dim_vector& dv, bool fill) const |
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211 { |
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212 MT retval (matrix); |
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213 if (fill) |
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214 retval.resize (dv, 0); |
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215 else |
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216 retval.resize (dv); |
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217 return retval; |
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218 } |
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219 |
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220 template <class MT> |
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221 bool |
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222 octave_base_matrix<MT>::is_true (void) const |
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223 { |
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224 bool retval = false; |
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225 dim_vector dv = matrix.dims (); |
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226 int nel = dv.numel (); |
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227 |
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228 if (nel > 0) |
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229 { |
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230 MT t1 (matrix.reshape (dim_vector (nel, 1))); |
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231 |
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232 boolNDArray t2 = t1.all (); |
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233 |
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234 retval = t2(0); |
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235 } |
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236 |
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237 return retval; |
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238 } |
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239 |
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240 template <class MT> |
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241 bool |
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242 octave_base_matrix<MT>::print_as_scalar (void) const |
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243 { |
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244 dim_vector dv = dims (); |
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245 |
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246 return (dv.all_ones () || dv.any_zero ()); |
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247 } |
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248 |
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249 template <class MT> |
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250 void |
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251 octave_base_matrix<MT>::print (std::ostream& os, bool pr_as_read_syntax) const |
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252 { |
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253 print_raw (os, pr_as_read_syntax); |
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254 newline (os); |
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255 } |
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256 |
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257 template <class MT> |
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258 void |
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259 octave_base_matrix<MT>::print_info (std::ostream& os, |
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260 const std::string& prefix) const |
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261 { |
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262 matrix.print_info (os, prefix); |
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263 } |
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264 |
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265 /* |
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266 ;;; Local Variables: *** |
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267 ;;; mode: C++ *** |
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268 ;;; End: *** |
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269 */ |
